Home / 22,620.40-31,214.68-12,548.82

Finding the Fourth Proportional to 22,620.40, 31,214.68 and 12,548.82

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Solution

The fourth proportional to 22,620.40, 31,214.68 and 12,548.82 is: 17,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.40 : 31,214.68 = 12,548.82 : x
  2. Step 2: Convert to fraction form
    22,620.40/31,214.68 = 12,548.82/x
  3. Step 3: Cross multiply
    22,620.40x = 31,214.68 × 12,548.82
  4. Step 4: Simplify right side
    22,620.40x = 391,707,244.60
  5. Step 5: Solve for x
    x = 391,707,244.60/22,620.40
  6. Step 6: Final answer
    x = 17,316.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.